draw-off pump

• 抽出泵,抽取泵

draw-off pump的用法和样例：

例句

1. The extractor is connected to the pump by a plastic line.
   抽取器由一根塑料管子与泵相连。
2. Air can not be compressed in the pump, so our pump can get coagulable air.
   气体在泵内无压缩，适宜抽取可凝性气体。